A neo-Nazi has been jailed for more than 13 years, with a further five years on extended licence, for planning a mass gun attack after being snared by MI5.
Alfie Coleman, 22, from Great Notley in Essex, was found guilty of preparing for terrorist acts following an Old Bailey retrial.
Previously, the court heard how Coleman was aged 14 when he first began to scrounge for extremist material online, including neo-Nazi content on his iPad.
The convict, who used to work part-time at Tesco, whipped up a "hate list" including his colleagues and customers.
In it, he described the individuals with racial slurs or he dubbed them "race traitors".
The court heard the 22-year-old also created a "manifesto", linked to a series of potential targets, such as a mosque and the Lord Mayor of London.
But undercover MI5 officers put an end to his plot in a sting operation after they engaged with him in an encrypted chat while he was trying to buy weapons.
Officials first became aware of the individual in the summer of 2023 when the Essex man upped his acitivity among online extreme right-wing groups.
Coleman, who was 19 at the time, set up plans to buy a Makarov pistol, five magazines as well as 200 rounds of ammunitions in an east London Morrisons car park back in September 2023.
Footage shown to the court captured the teenager dropping off £3,500 in a Land Rover Discovery.
He can then be seen holding a holdall which contained a handgun and ammunition.
The extremist was then halted by armed counter-terror police officers, who forced Coleman to the floor.
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A subsequent search of the property, where he lived with his parents and a sibling, revealed the extent to which Coleman admired right-wing extremists.
The investigation also unveiled that he idolised Thomas Mair, who is the far-right extremist who murdered Labour MP Jo Cox just over 10 years ago.
Officers discovered £2,500 in savings, as well as a device able to detect bugs and secret cameras, in his bedside cupboard.
They also found a rock with a Swastika, a Black Sun flag - which is linked to neo-Nazi groups - as well as literature on right-wing extremism.
As he gave evidence, the extremist complained about loneliness and ongoing issues with mental health as a result of the Covid-19 lockdowns from 2020 until 2022.
Coleman had admitted an attempt to possess both a firearm and ammunition. However, he denied he was preparing for a terrorist attack.
Before court, he pleaded guilty to possessing 10 documents with information likely to be useful to terrorists.
Such texts included literature on weaponry and instructions on how to make a bomb.
